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Keywords:

  • allene;
  • asymmetric synthesis;
  • benzothiadiazine;
  • hydrogen bond donor;
  • organocatalyst
Thumbnail image of graphical abstract

The left hand claps the right: Highly enantioselective isomerization of racemic α-substituted alkynoates into nonracemic trisubstituted allenoates was achieved through the catalytic dynamic kinetic resolution mediated by bifunctional benzothiadiazine. This reaction proceeded with good conversion and high enantioselectivity to give the desired allenoates in good yields without recovering the significant amounts of starting materials.